Built Unity Scene converting to Unity Scene

Here’s a Scene file:
75155-untitled-3.jpg

Here’s a built unity scene (as I call it, anyways):
75156-untitled-6.jpg

All I want to do is convert level0 to an actual scene file.

Thanks!

I have no idea what your “built unity scene” file is - it has a generic unrecognised file icon so literally could be anything. But you can’t decompile a built game back to its source project files, which I think is what you’re asking.